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197952 (2004 RA84)
Classification: Main-belt Asteroid          SPK-ID: 2197952
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2203027166835535 5.1822e-08  
a 2.439011413336769 1.9742e-08 au
q 1.901690572956485 1.2272e-07 au
i 9.352925144142862 6.8154e-06 deg
node 248.5880912483173 3.3094e-05 deg
peri 114.9955052970157 3.801e-05 deg
M 31.29474775587482 2.4273e-05 deg
tp 2458879.554941096045
(2020-Jan-31.05494110)
9.2606e-05 TDB
period 1391.294844268243
3.81
1.6892e-05
4.625e-08
d
yr
n .2587517674510923 3.1415e-09 deg/d
Q 2.976332253717053 2.4091e-08 au
  Orbit Determination Parameters
   # obs. used (total)      383  
   data-arc span      6885 days (18.85 yr)  
   first obs. used      2001-12-16  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51793  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:44:18  

Additional Information
 Earth MOID = .922672 au 
 Jupiter MOID = 2.57522 au 
 T_jup = 3.451 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO440079  

197952 (2004 RA84)          Discovered 2004-Sep-09 by Klet at Klet
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Alternate Designations
 2004 RA84 = 2004 MV7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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